sorry for gatecrashing someone else's question but I am having the same issue with my new Samsung ue50tu7000kxxu, it worked fine for a day, then the following night it started flashing on and off on the Virgin channel (HDMI1) I restarted everything in every sequence, I got weird colours at first, with some strange static 'noise' then it stopped seeing it altogether, it shows the 'welcome' screen, and the 'Starting up screen' (on the Tivo) but then it goes blank and the TV can't detect it.
I spoke to Samsung technical chat who suggested that the software on the TV was incompatible with the Tivo V6....which I find incomprehensible.
I plugged the Tivo into my older 2016 Samsung TV and it worked perfectly, and everything else on the TV works fine.
I have reset both the TV and the Tivo many times in every single order, but still have the same result.
I refuse to believe that Samsung would bring a 2020 TV out that wasn't compatible with Virgin Tivo in the UK.
Any help would be great so that I don't end up sending the TV back only for it to happen again.
Actually, thank you for taking the time to look, After reading many stories online of people having the same issue with Samsung TV's, it would appear the only real solution is to not get a Samsung, so I am returning the TV and getting an LG, thanks again.